.biaoti{
    text-align: center;
    margin-top: 50px;
    margin-bottom: 50px;
}
.text{
    text-align: center;
}
.weixin{
    text-align: center;
    border: 1px solid #ccc;
    font-size: 20px;
    height: 50px;
    line-height: 50px;
    background-color: aliceblue;
    border-radius: 15px;
    margin-top: 15px;
}